<template>
  <div class="login-container" >
    <el-form
      ref="login_form"
      :model="login_form"
      :rules="loginRules"
      class="login-form"
      auto-complete="on"
      label-position="left"
    >
      <div class="title-container">
        <h3 class="title">{{name+'-'+(isShop?'商户后台管理':'后台管理')}} </h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          ref="username"
          v-model="login_form.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="password_type"
          ref="password"
          v-model="login_form.password"
          :type="password_type"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="do_login"
        />
        <span class="show-pwd" @click="show_pwd">
          <svg-icon :icon-class="password_type === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>
      <div class="form-row" style="color:#e0e0e0 ;margin: 10px;" v-if="times>0">尝试次数太多请等待<div style="color:#ff0000 ;margin:0 10px;">{{times}}</div>秒后再试!</div>
      <div style="color:#ff0000 ;margin: 10px;" v-if="count>=0">用户名或密码错误,您还可以尝试[{{count}}]次!</div>

      <el-button
        :loading="loading"
        type="primary"
        style="width:100%;margin-bottom:30px;"
        @click.native.prevent="do_login"
        :disabled="times>0"
      >登录</el-button>

      <!-- <div class="tips">
        <span style="margin-right:20px;">username: admin</span>
        <span>password: 123456</span>
      </div> -->
    </el-form>
  </div>
</template>

<script>
// import validUsername from '@/utils/validate'
// 11
import { get } from '@/utils/request'
export default {
  name: 'Login',
  data() {

    const validate_username = (rule, value, callback) => {
      if (value.length < 4) {
        callback(new Error('用户名需要大于4位'))
      } else {
        callback()
      }
    }
    const validate_password = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('密码需要大于6位'))
      } else {
        callback()
      }
    }
    return {
      name:'',
      count:-1,
      thread:0,
      times:0,
      isShop:'',
      login_form: {
        username: '',
        password: ''
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', validator: validate_username }
        ],
        password: [
          { required: true, trigger: 'blur', validator: validate_password }
        ]
      },
      loading: false,
      password_type: 'password',
      redirect: undefined
    }
  },

  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },

  mounted() {
    for(let i in this.$route.query){
      if(i!='redirect'){
        this.isShop=true
      }
    }
    get('/pub/admin/main_menu').then((res) => {
      this.name=res.name;
    })
  },
  methods: {
    show_pwd() {
      if (this.password_type === 'password') {
        this.password_type = ''
      } else {
        this.password_type = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    do_login() {
      this.$refs.login_form.validate(valid => {
        if (valid) {
          this.get('/pub/'+(this.isShop?'shop':'admin')+'/login', this.login_form, 'POST').then(e => {
            this.$store.dispatch('admin/do_set_token', e)
            this.$router.push({ path: this.redirect || '/' })
          },e1=>{
            if(e1.data.times!=undefined){
              this.times=e1.data.times
              this.count=-1
              if(this.thread==0){
                this.thread=setInterval(()=>{
                  this.times--
                  if(this.times<=0){
                    this.times=0
                    clearInterval(this.thread)
                    this.thread=0
                  }
                },1000)
              }
              
            }else{
              this.count=e1.data.max_count-e1.data.count-1
            }
            
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #314c91 ;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
        margin-top: 4px;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  background-image: url('../../image/beijing.jpg');
  // background-image: url('../../image/dl_bg.jpg');
  background-size: 100% 100%;
  .login-form {
    position: absolute;
    width: 520px;
    max-width: 100%;
    padding: 0 35px 0;
    margin: 0 auto;
    overflow: hidden;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
@media (max-width: 550px){
  .login-container {
    background-image: url('../../image/sj_beijing.jpg');
  }
}
</style>
